Interesting (to me) that such forks are not being handled like stock splits. Way back when, you owned some EMC stock through a brokerage, then EMC spun off VMWare, and presto, now you own VMware stock too. The “true” owner of stock is actually really complicated with 101 intermediaries, but nevertheless none of them jumped in to claim your part of the spinoff. But various exchanges are saying they don’t support the fork, so the “split” shares just get tossed in the garbage. If that happened to some stock I owned, I’d be pretty miffed.